There's some conjecture that this song was written in response to the boatloads of generic pop music "flooding the world"; in fact, in an interview, Yamanaka, one of The Pillows' members, was asked by a reviewer: "The song 'Instant Music' seems to be angry at, even disgusted with, music in the world today, do you think so?"

To which Yamanaka replies, "No, I don't really think so at all. Of course, I think about things like that sometimes, and one day I may make a single out of it. But it's not something I want to discuss right now." (You can read the rest of Yamanaka's answer, and the full interview, at http://www.so-net.ne.jp/mc/closeup/981112/pillows.html . Warning--the site's in Japanese.)